It is true because a rational function is defined as those functions where the variable is placed in the denominator, which must be restricted, because all denominators cannot be equal to zero, other wise it would be undetermined
For this, we are just going to plug in -9 for every x and then solve the equation:




Now we know that q(-9) is equal to 566.
Answer:
a) 1680
<em>The number of ways to listen to four CDs from a selection of 8 CDs = 1680</em>
Step-by-step explanation:
<u><em>Explanation:-</em></u>
Given data the number of CD' s n = 8
<em>We have to selected '4' CD' s from total '8' CD's</em>
<em>By using permutations </em>
<em>The number of ways to listen to four CDs from a selection of 8 CDs.</em>
<em> = </em>
<em> </em>
<em> we know that </em>


<em>The number of ways to listen to four CDs from a selection of 8 CDs = 1680</em>
A. 1,690 miles because it’s for 30 days and they do 12 miles each day